Large-scale distributed storage for highly concurrent Mapreduce applications

A large part of today´s most popular applications are data-intensive. Whether they are scientific applications or Internet services, the data volume they process is continuously growing. Two main aspects arise when trying to accomodate the size of the data: processing the computation in a manner that is efficient both in terms of resources and time, and providing storage capable to deal with the requirements of data-intensive applications. Since the input data is large, the computation, which is, in most cases straightforward, is distributed across hundreds or thousands of machines; thus, the application is split into tasks that run in parallel on different machines, tasks that will need to access the data in a highly concurrent manner.